Just found the price cheaper than last time I posted of this Doorbell kit. Is a good chance if you haven't buy before.
Features:
No batteries needed.
52 ringtones, long wireless range and adjustable volume.
Waterproof.
Features:
No batteries needed.
52 ringtones, long wireless range and adjustable volume.
Waterproof.
So I'll +1 to the previous comment, anyone had any first hand use of these? It's unusual to see one with only 5* reviews though.
They work when you push the button it generates a small charge which is enough to send a signal to the receiver, i have a proper one that i have had working as it should for the last 18 or so months, the one listed above does require a battery while mine has none, you will find it here
Does the poster have any link to the third party merchant on amazon?
That's a really interesting option. I've never come across that brand before but the reviews are excellent and your experience was nothing but positive! I might have a quick look at other kinetic doorbells too...